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System Architecture

Date Last Saved: 7/27/2010 2:37:11 PM

This section distinguishes between Operator Interfaces and Field Interfaces to the BAS. The Operator Interface refers to the main 'front-end' method for accessing and operating the BAS. The Field Interfaces typically access the BAS from the controller-level and have limited functionality, and may include HID, LDP, and ZBI as described below. This section describes the devices only; OI functionality is generally covered in the Software, while Field Interface functionality is detailed further in the individual Controllers
Operator Interfaces (OI)
Dedicated Operator Workstation (OWS)
Dedicated PC(s) with proprietary workstation software
PC using client/server configuration and running WinControl XL Plus or TotalControl software [See also NetView below under Local Display Panels]
"Thin" Client Browser Internet Explorer, Mozilla, Netscape (requires iNetView to be downloaded once)
"Thick" Client Browser WinControl XL Plus or TotalControl
Product Application(s): N.A.
Handheld Interface Devices (HID)
Local Display Panel (LDP) NetView Display Panel: The NetView is a special-purpose PC that connects to a 5800 or 7000-Series controller. It is typically wall/zone-mounted or can sit on a desktop as an alternative operator workstation. The NetView has a 42 character by 16 lines touch-screen LCD with CFL backlight. The NetView provides for all PC-type operator functions except ControBASIC programming, and assigning trendlogs It also provides password protection. All controllers on the SubLAN can be accessed via the NetView.
Zone Based Interfaces (ZBI)
Thermostat with communication port to access local controller/network NetSensor(s): Wall mounted operator interface device with sensor and auxiliary PC communication port. Has 9 function keys and 4 character display. Can be configured to allow status reading, change of setpoint, or on/off control. Connects to a 5800 or 7000-Series controller. Optional local PC access
Other thermostat types available (without communication ports)
Interface to BAS Networks Primary network uses Proprietary/IP or alternately BACnet/IP protocol and is compatible with IT network/Internet.
Compatible with the building's IT network? Yes
Protocol(s) Proprietary/IP or BACnet MS/TP or BACnet/IP
Cabling and Speeds Standard IP Cabling @ 10 Mbps
Expansion Capability The KMDigital Main Network can support up to a total of 125 LAN Controllers (PCUs) , each of which can support 2 subnetworks of up to 124 SCUs each, as well as up to 128 integral I/O points via point expansion boards. Total network SCU node count is 32,000. Total, theoretical I/O point count of a fully populated main network, with fully populated subnets is in excess of 880,000 points.
Additional Information
Peer-to-Peer or Polling? Peer-to-peer
Protocol(s) Proprietary
Cabling and Speeds UTP @ 38.4 kbps (configurable down to 9.6 kbps)
Expansion Capability See "Primary Network Expansion Capability" above.
Additional Information
Includes a listing of available Gateways, Routers and other devices that provide additional communications flexibility into and out of the BAS. Repeaters, bridges, standard modems and the like are typically not included here. Note: If in use by the BAS, the Internet/building IT Network is extremely open and non-proprietary. If a vendor uses the IT Network, CI devices such as IP routers and hubs can be purchased from third parties.
Model (Device) Application
Model (Device) CommTalk TPI (KMD-5540)
Application CommTalk TPI (third-party interface) is a series 7000 controller that is factory-pre-configured (firmware) as a gateway to available vendors. Contact KMC for latest offerings.
Classification Gateway
3rd party protocols/networks
LAN Controller
Additional Information Carrier DataPort, Carrier DataLink, York Talk XL, McQuay MicroTech, ModBus
Model (Device) Application
Model (Device) CommTalk DEM Computer and Modem Interface (KMD-5559)
Application CommTalk DEM handles dial-in/dial-out communications, buffers and stores 64 alarms, and interfaces subnet (standalone SCU controller network) to operator workstation PC by converting from EIA-485 to EIA-232. Numeric and text pager-compatible. Used most often for smaller SubLAN-only installations.
Classification Modem Controller
PC (EIA-232)or modem
SubLAN (EIA-485)
Additional Information Also available - Modem-to-pager service (text or numeric message) 24 hr Memory Capacitor Backup
Model (Device) Application
Model (Device) Network Repeater (KMD-5575)
Application Used to recondition degrading EIA-485 signal on KMDigital networks when network cabling reaches 4000 ft. or when more than 32 controllers are attached to a subnetwork. Also used when "starring" a subnetwork. Requires 24 Vac; 3 VA
Classification Repeater
Not applicable
Not applicable
Additional Information